Mods for my 1998 Mustang? 10 Points Best answer.?
Body kits? None. This isn't a civic.
Hoods? Keep the stock one. Unless you need clearance for a massive engine, or are reducing the weight with a carbon fiber hood, it's pointless to replace it for looks, especially when most aftermarket hoods are hideous.
Exhaust...Stick with a single exhaust. 2.5" single, headers, high flow Y pipe, will do just fine.
Interior...If you're going to race the car, get a lightweight race seat like a Kirkey, Sparco, Corbeau, etc. If not, leave it as is and just upgrade the stereo as you see fit.
Wheels...17s are a good size.
If you want more power than basic bolt ons, which would get you about 170--180whp, then just sell the car, spend $500 more and get a GT.